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Hybrid Precoder Design for Angle-of-Departure Estimation with Limited-Resolution Phase Shifters

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Názov: Hybrid Precoder Design for Angle-of-Departure Estimation with Limited-Resolution Phase Shifters
Autori: Huang, Huiping, 1991, Keskin, Musa Furkan, 1988, Wymeersch, Henk, 1976, Cai, Xuesong, Wu, Linlong, Thunberg, Johan, Tufvesson, Fredrik
Zdroj: Bortom 5G Positionering Hårdvarumedveten integrerad lokalisering och avkänning för kommunikationssystem Near-field Enhanced Accuracy Tracking for 6G Networks (NEAT-6G) IEEE Transactions on Communications. 73(6):4439-4453
Predmety: angle-of-departure estimation, Hybrid beamforming, hybrid precoder, alternating optimization, alternating direction method of multipliers, phase shifter
Popis: Hybrid analog-digital beamforming stands out as a key enabler for future communication systems with a massive number of antennas. In this paper, we investigate the hybrid precoder design problem for angle-of-departure (AoD) estimation, where we take into account the practical constraint on the limited resolution of phase shifters. Our goal is to design a radio-frequency (RF) precoder and a base-band (BB) precoder to estimate AoD of the user with high accuracy. To this end, we propose a two-step strategy where we first obtain the fully digital precoder that minimizes the angle error bound, and then the resulting digital precoder is decomposed into an RF precoder and a BB precoder, based on the alternating optimization and the alternating direction method of multipliers. Furthermore, we derive the quantization error upper bound and provide convergence conditions for the proposed algorithm. Numerical results demonstrate the superior performance of the proposed method over state-of-the-art baselines.
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Prístupová URL adresa: https://research.chalmers.se/publication/546613
https://research.chalmers.se/publication/544615
https://research.chalmers.se/publication/546613/file/546613_Fulltext.pdf
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Items – Name: Title
  Label: Title
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  Data: Hybrid Precoder Design for Angle-of-Departure Estimation with Limited-Resolution Phase Shifters
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  Data: <searchLink fieldCode="AR" term="%22Huang%2C+Huiping%22">Huang, Huiping</searchLink>, 1991<br /><searchLink fieldCode="AR" term="%22Keskin%2C+Musa+Furkan%22">Keskin, Musa Furkan</searchLink>, 1988<br /><searchLink fieldCode="AR" term="%22Wymeersch%2C+Henk%22">Wymeersch, Henk</searchLink>, 1976<br /><searchLink fieldCode="AR" term="%22Cai%2C+Xuesong%22">Cai, Xuesong</searchLink><br /><searchLink fieldCode="AR" term="%22Wu%2C+Linlong%22">Wu, Linlong</searchLink><br /><searchLink fieldCode="AR" term="%22Thunberg%2C+Johan%22">Thunberg, Johan</searchLink><br /><searchLink fieldCode="AR" term="%22Tufvesson%2C+Fredrik%22">Tufvesson, Fredrik</searchLink>
– Name: TitleSource
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  Data: <i>Bortom 5G Positionering Hårdvarumedveten integrerad lokalisering och avkänning för kommunikationssystem Near-field Enhanced Accuracy Tracking for 6G Networks (NEAT-6G) IEEE Transactions on Communications</i>. 73(6):4439-4453
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  Data: <searchLink fieldCode="DE" term="%22angle-of-departure+estimation%22">angle-of-departure estimation</searchLink><br /><searchLink fieldCode="DE" term="%22Hybrid+beamforming%22">Hybrid beamforming</searchLink><br /><searchLink fieldCode="DE" term="%22hybrid+precoder%22">hybrid precoder</searchLink><br /><searchLink fieldCode="DE" term="%22alternating+optimization%22">alternating optimization</searchLink><br /><searchLink fieldCode="DE" term="%22alternating+direction+method+of+multipliers%22">alternating direction method of multipliers</searchLink><br /><searchLink fieldCode="DE" term="%22phase+shifter%22">phase shifter</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: Hybrid analog-digital beamforming stands out as a key enabler for future communication systems with a massive number of antennas. In this paper, we investigate the hybrid precoder design problem for angle-of-departure (AoD) estimation, where we take into account the practical constraint on the limited resolution of phase shifters. Our goal is to design a radio-frequency (RF) precoder and a base-band (BB) precoder to estimate AoD of the user with high accuracy. To this end, we propose a two-step strategy where we first obtain the fully digital precoder that minimizes the angle error bound, and then the resulting digital precoder is decomposed into an RF precoder and a BB precoder, based on the alternating optimization and the alternating direction method of multipliers. Furthermore, we derive the quantization error upper bound and provide convergence conditions for the proposed algorithm. Numerical results demonstrate the superior performance of the proposed method over state-of-the-art baselines.
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        Value: 10.1109/TCOMM.2024.3487517
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      – SubjectFull: angle-of-departure estimation
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      – SubjectFull: Hybrid beamforming
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      – SubjectFull: alternating optimization
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      – SubjectFull: alternating direction method of multipliers
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      – SubjectFull: phase shifter
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      – TitleFull: Hybrid Precoder Design for Angle-of-Departure Estimation with Limited-Resolution Phase Shifters
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